PracticeQuestionsExam_1

B isotype switching refers to a change in constant c

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Unformatted text preview: eact with foreign antigen C. selection of lymphocyte clones that react with self antigen D. proliferation of lymphocyte clones that react with self antigen E. elimination of macrophages that express MHC class II 9. An invading microorganism would cause more serious pathology in the absence of: A. antibodies B. T cells C. the innate immune system D. plas...
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